WideStudio is an Integrated Development Environment (IDE) for building window applications in C++, Ruby, Python an Perl for Windows, MacOSX, Linux, FreeBSD, SOLARIS and other unix and BTRON and T-Engine. This is open and free (under MIT/X Consortiun Lice

nVentory is a Ruby on Rails application to manage inventory in multiple datacenters. Manage server functionality assignment, customer/server assignment, racking, and more. Track which servers are doing what, and where they are in your datacenters.

The goal of Expertiza is to support student-generated content through peer review and teamwork. It is a peer-review system that allows students to select a topic to work on, then submit their work and review their peers' submissions.

LCDProc-Ruby is an application programming interface (API) to the LCDProc lcd server. You can create a client, add a screen to that client, and then add widgets to that screen. Multiple clients, widgets, and screens are supported.

The Phenoscape project attempts to formalize the description of evolutionary characters to make them interoperable and computable with the body of phenotype annotation being generated by model organism databases, and other biomedical research.

ReviewMonk is a code reviewing tool for Subversion built with Ruby on Rails. It's a webserver that runs on your machine and allows you to share all your local code changes with others before you check them in.

Ambition is a framework for writing adapters. Adapters are gems named something along the lines of ambitious-activerecord. They typically use Ambition to turn Ruby into some domain specific query which can be executed.

This is a web-based collaboration tool for groups to conduct heuristic usability or accessibility evaluations. There is a UI for the evaluators to report problems and a separate UI for customers to get real-time results.